JP4171808B2 - High speed cutting test equipment - Google Patents

Description

  The present invention relates to a high-speed cutting test apparatus for experimentally examining the influence of a high-speed cutting speed and a cutting atmosphere on a cutting mechanism and a finished surface quality.

  Increasing the cutting speed improves the cutting performance by improving the machining efficiency by shortening the cutting time, cutting high-strength materials such as hardened steel as they are, and reducing the work-affected layer on the finished surface. It is expected to be effective, and the progress of elemental technology for machine tools to increase the cutting speed, such as the development of a high-speed spindle mechanism and high-speed feed mechanism, is remarkable.

  However, there are many unclear points about the effect of high-speed cutting speed on the cutting mechanism (chip generation mechanism, cutting force, cutting temperature, finished surface quality, tool damage, etc.). There are many unclear points about whether cutting performance is improved, how fast it can be made, and whether there is a limit to the high-speed cutting speed.

  Furthermore, in the high-speed cutting process, since the cutting temperature is high, the surface temperature of the cut finish surface also rises, and the chemical reaction at the interface of the cut finish surface is considered to have a large effect on the quality of the cut finish surface. In addition to this, it is desirable to clarify the cutting mechanism of the high-speed cutting process taking into account the cutting atmosphere.

  In order to elucidate the cutting mechanism of the high-speed cutting process taking into consideration such a cutting atmosphere, the cutting atmosphere and the cutting speed are controlled by the cutting atmosphere and the cutting speed using the processing equipment that can control the cutting atmosphere and realize the high-speed cutting process. Therefore, it is necessary to systematically investigate the effects of cutting force, cutting temperature, cutting finish surface quality and tool damage state by actually performing high-speed cutting, and comprehensively review the obtained results.

  The cutting type to clarify the effect of cutting conditions such as cutting speed and cutting thickness on the cutting mechanism such as chip formation, cutting force and cutting temperature is a flat workpiece (workpiece) The flat cutting method that cuts the surface with a constant cutting thickness is advantageous because it can easily realize a two-dimensional cutting process and facilitate subsequent analysis.

  Previously proposed high-speed cutting test equipment with the above-mentioned cutting type has a workpiece as a bullet, which is made to fly at high speed by high pressure due to explosive explosion, and a tool installed near the muzzle has a bullet-like shape. There is a method of scraping a part of the work material.

  Non-patent documents 1 and 2 show such examples.

  On the other hand, a tool with a tool installed at the tip is inserted into the pipe, the rod is accelerated by the pressure of the compressed gas, and a part of the stationary work material is scraped off. Conversely, the work material is placed at the tip. Insert the finished rod into the pipe line, accelerate the rod with compressed air pressure, scrape part of the work material with the stationary tool, and combine both to accelerate both the tool and the work material There is a method for realizing a high-speed cutting process.

Non-patent documents 3, 4 and 5 show such examples.
In any of the above methods, the cutting force and cutting temperature during the high-speed cutting process can be grasped by installing a force measuring device or a temperature measuring device below the fixed tool or work material.

If the cutting area is sealed so as to isolate the cutting atmosphere from the atmosphere, or if the entire apparatus is installed in a space that can be isolated from the atmosphere, the influence of the cutting atmosphere can be considered.
Of these, compressed gas of less than 1.0 MPa should be used to perform high-speed cutting experiments easily without requiring large equipment.

  In the method of accelerating the work material, increasing the cutting distance increases the mass of the work material to be accelerated, making it difficult to increase the speed, and accelerating the rod on which the tool or work material is installed. Since it is difficult to reduce the weight of the rod, it is also difficult to fly at high speed.

On the other hand, as for the method of flying the tool, if there is a cutting blade portion of the cutting tool, the whole can be reduced in size and the mass can be reduced.
Therefore, it can be said that a method of accelerating a small tool with compressed gas is suitable.

  By the way, in the cutting experiment, the chip generated in the cutting process is very important for elucidating the cutting mechanism because the thickness of the shear angle, the amount of shear strain, and the shape of the chip can be grasped from the form. .

  When cutting a workpiece whose cutting edge of a cutting tool flying at high speed is stopped, the generated chips scatter with the tool at a speed approximately the same as that of the tool.

  Tools that fly at high speed after cutting and chips generated during the cutting process must be stopped at a short distance due to the size limitations of the experimental equipment. The kinetic energy was forcibly consumed and stopped by colliding.

Yoshinobu Tanaka, Hideo Tsuwa, Tomomi Kakuzono, “Study on Ultra High Speed Cutting (1st Report)”, Precision Machinery, Vol. 30, No. 8, (1964) p.637-644. Kozo Takashi, Hiroshi Eda, Hideo Ueno, “Surface creation in ultra-high-speed cutting up to 1200 m / s (1st report)-Trial manufacture of ultra-high-speed experimental equipment and some experiments-”, Precision Machinery, Vol. 46, No. 12, ( 1980) p.1499-1505. G. Sutter, A. Molinari, L. Faure, JRKlepaczko, D. Dudzinski, “An Experimental Study of High Speed Orthogonal Cutting”, Transaction of ASME Journal of Manufacturing Science and Engineering, Vol. 120, February, (1998) p .169-172. KMVernaza-Pena, JJMason and M.Li, “Experimental Study of the Temperature Field Generated During Orthogonal Machining of an Aluminum Alloy”, Experimental Mechanics, Vol.42, No.2, June, (2002) p.221-229 . J. Shinozuka and T. Obikawa, “Development of Orthogonal Impact Cutting Testing Machine”, Key Engineering Materials, Vols. 291-292, August, (2005) p.507-512.

  However, according to the conventional technology, when a tool or chip flying at high speed collides with the shock absorber, the tool or chip may be deformed or damaged by the impact force.

It is difficult to tell whether these deformations and damages are caused by the cutting process or when they hit the shock absorber, and there is a problem that greatly hinders analysis after the experiment.
This problem is particularly noticeable for work materials with low yield strength.
Furthermore, in the case of generating discontinuous chips, there is a problem that chips that are important for elucidating the cutting mechanism are lost.

  Chips are very important for grasping the cutting mechanism as described above, and therefore, it is necessary to collect chips as they are generated in the cutting process.

  Therefore, the present invention preferably accelerates the cutting edge of a small cutting tool installed in a pipe line with a compressed gas in an environment where the cutting atmosphere can be controlled by isolating it from the atmosphere, and puts it in a machining chamber connected to the pipe line. A high-speed cutting process is realized by cutting a part of the installed work material, and tools and chips that continue to fly at high speed after cutting are stopped without any deformation or damage other than the cutting process. It is an object to provide a high-speed cutting test apparatus having a function of causing

  In order to solve the above problems, the main features of the high-speed cutting test apparatus according to the present invention are as follows.

A flying container containing a cutting edge of a small cutting tool is loaded into the pipe line, accelerated with compressed gas at high speed, and a part of the work material installed in the processing chamber connected to the pipe line is cut. The cutting process is realized with this, and the flying container that keeps flying in the pipeline even after the cutting is finished is loaded with a deceleration force by the pressure of compressed gas from the flying direction so that the flying container does not collide with shock absorbers, etc. Has the function of stopping in the pipeline.
A flying container with a built-in cutting edge of a small cutting tool has a function of storing chips generated in the cutting process.

  After cutting, the chip and cutting tool's cutting edge can be moved to a position other than the cutting process by the function of stopping the flying container with the cutting tool's cutting edge and chip inside the pipe without colliding with the shock absorber. It can be recovered without being deformed or damaged.

  The pipe that the flying container with the cutting edge of a small cutting tool flies in and the processing chamber that realizes the cutting process are isolated from the atmosphere and have the function of controlling the internal atmosphere.

  According to the high-speed cutting test apparatus of the present invention, when the flying container flying at high speed is stopped, the impact force that occurs when it collides with an impact absorbing material or the like does not act on the flying container. The cutting edges and chips can be recovered in the state of the cutting process.

From the collected cutting edge and chip of the cutting tool, it is possible to grasp the chip generation mechanism at high speed cutting speed, and it is possible to grasp the tool damage state in the high speed cutting process from the wear state and chipped state of the tool rake face and flank face. .
Along with this, the cutting force and cutting temperature in the high-speed cutting process can be grasped by a force measuring device and temperature measuring device installed under the work material.

  Furthermore, by analyzing the surface properties, cross-sectional structure, residual stress state, etc. of the finished surface, the cutting mechanism in the high-speed cutting process can be experimentally studied taking into consideration the influence of the processing atmosphere. There is an advantage that the various cutting phenomena in the process can be comprehensively clarified.

  The best mode for carrying out the invention will be described with reference to FIGS.

  One embodiment of the present invention is shown in FIG.

  The high-speed cutting test machine according to the present invention is roughly classified into a processing chamber 1 for measuring a cutting force and a cutting temperature, a flying container 10 incorporating a cutting tool 11, and accelerating the flying container 10. A pipeline 2 for decelerating and stopping the flying container 10, a compressed gas supply device 4 for accelerating the flying container 10, and a compressed gas supply for injecting a compressed gas for decelerating and stopping the flying container 10 Consists of device 5.

The pipeline 2 and the pipeline 3 are arranged on the same straight line, and the flying container 10 accelerated by the pipeline 2 is introduced into the pipeline 3, but is supplied from the compressed gas supply device 5 after a predetermined time. Stop at the end of line 3 with compressed gas.
The processing chamber 1, the pipe line 2, and the pipe line 3 are mechanisms isolated from the atmosphere, and the internal atmosphere can be controlled to a specific pressure with a vacuum or a specific gas.

  Solenoid valve 1B in the middle of vacuum exhaust device 6 and processing chamber 1 is an electromagnetic valve for vacuum exhaust. Solenoid valve 1A uses a specific gas to evacuate chamber 1, pipe line 2, and pipe 3 inside the atmosphere. The solenoid valve 1C is a solenoid valve for opening the atmosphere inside the chamber 1, the pipeline 2, and the pipeline 3 to the atmosphere.

  The compressed gas supply device 4 for accelerating the flying container 10 includes a pressure vessel 4A for storing the compressed gas, a safety manual on-off valve (ball valve) 4B, and a valve 4C that can remotely control the opening and closing of the compressed gas in the pressure vessel 4A. Consists of.

Similarly, the compressed gas supply device 5 for decelerating the flying container 10 can remotely control the pressure vessel 5A for storing the compressed gas, the safety manual on-off valve (ball valve) 5B, and the opening and closing of the compressed gas in the pressure vessel 5A. Can be made up of a valve 5C.
The above solenoid valves are all normally closed.

In the chamber 1, a height adjusting device 12 having high rigidity both statically and dynamically and capable of finely adjusting the height in units of microns is installed.
On the height adjusting device 12, a force measuring device 13 for measuring cutting force is installed, and a work material 14 is installed thereon.

A temperature measuring device 15 for measuring the cutting temperature is installed in or near the work material.
The cutting temperature is obtained from the change in thermoelectromotive force during cutting, for example, by embedding a thermocouple in the work material 14. Alternatively, an infrared radiation thermometer or the like capable of focusing on the vicinity of the cutting point and the finished surface of the work is installed near the work material 14, and the cutting temperature is grasped from the output.

The cutting thickness is controlled by moving the work material up and down by the height adjusting device 12.
In the vicinity of the work material 14 disposed between the pipe line 2 and the pipe line 3, a transmission type, regressive reflection type or diffuse reflection type photoelectric sensor 16 for detecting the passage of the flying container 10 is provided. 17 is installed.

  The photoelectric sensor 16 on the compressed gas supply device 4 side of the work material 14 detects the passage of the flying object just before cutting, and the photoelectric sensor 17 on the compressed gas supply device 5 side of the work material 14 Detects the passage of flying objects.

A speed measuring device 18 installed in the vicinity of the work material radiates light or electromagnetic waves to the surface of the flying object, and measures a temporal change in the amount of light or electromagnetic waves received by the flying object surface.
The cutting speed is grasped by analyzing the change in the amount of received light.

Each signal from force measuring device 13, temperature measuring device 15, photoelectric sensor 16, photoelectric sensor 17, and velocity measuring device 18 is composed of amplifiers for each sensor installed outside chamber 1 and a recorder such as an oscilloscope. Is taken into the measuring device 19 to be operated.
Part of the signal captured by the measuring device 19 is captured by the valve opening / closing control device 20 that automatically controls the opening / closing of the valves 4C and 5C.

The valve opening / closing control device 20 electronically analyzes the signal of the measuring device 19, determines the start and end of cutting, and controls the opening and closing of the valves 4C and 5C based on the results.
The valve opening / closing control device 20 includes an adjustment mechanism that can be set by manually adjusting the opening / closing time in advance. Even if there is no signal from the measuring device 19, the valve 4C is opened after the setting time has elapsed after the valve 4C is opened. Is also included, and a function to send a signal to open valve 5C after a set time is included.

The pipe 2 and the pipe 3 are connected so that the respective axes are aligned at the center of the chamber 1, and a cut groove for inserting a part of the work material into the pipe is provided at the connecting portion. It is.
Similarly, holes or slits for introducing light or electromagnetic waves from the photoelectric sensor 16, the photoelectric sensor 17, and the speed measuring device 18 into the pipeline are also provided in the pipeline 2 and the pipeline 3 in the chamber 1. is there.

Next, the operation of the high speed cutting test apparatus of the present invention will be described.
First, the flying container 10 incorporating the cutting tool 11 is loaded into the pipe line 2 from the flying container loading port 7 connected to the pipe line 2.

Next, in order to control the atmosphere inside the chamber 1, the pipeline 2, and the pipeline 3, the electromagnetic valve 1 </ b> B in the chamber 1 is opened and evacuation is performed using the vacuum exhaust device 6.
To control the cutting atmosphere to a specific gas after evacuation, open the valve 1A and introduce a specific gas until a specific pressure is reached.
Open the safety valves 4B and 5B for acceleration and deceleration.
At the start of the experiment, the acceleration valve 4C is opened electronically, the compressed gas pressure is loaded on the flying container 10 at once, and the flying container 10 is accelerated.

A method of estimating the time change of the movement of the flying container 10 will be described with reference to FIGS. 2 (a) to 2 (c).
In the estimation process, for the sake of simplicity, the pressure loss, the air resistance applied to the flying container 10, the pressure leakage between the surface of the flying container 10 and the walls of the pipe 2 and the pipe 3, friction, and cutting force are ignored. Furthermore, ignoring the volume of the valve 4B, the valve 4C, the valve 5B, and the valve 5C, the equation of motion of the flying container 10 is solved.

As shown in FIG. 2 (a), the initial pressure of the pressure vessel 4A of the compressed gas supply device 4 is P ₄ , the volume of the pressure vessel 4A is V ₄ , the volume of the pipeline 2 is V ₂ , and the pipeline 3 (flying vessel) The volume of the recovery container 8 is also included) V ₃ , the cross-sectional area of the pipe 2 and the pipe 3 is A, the volume of the chamber 1 is V ₁ , and the initial pressure of the pressure vessel 5A of the compressed gas supply device 5 is P ₅ The volume of the pressure vessel 5A is V ₅ , the mass of the flying vessel 10 is m, and the moving distance from the loading position of the flying vessel 10 is x.
When the valve 4C is opened, _a pressure Pa is applied to the flying container 10 in order to accelerate the flying container 10.

The pressure P _a is reduced according to the movement distance x of the flying vessel 10, and _{P a = V 4 × P 4} / (V 4 + A × x).
Therefore, when the moving distance of the flying container 10 is x, the flying container 10 flies at an acceleration of a ₁ = A × P _a / m (> 0), and the moving speed of the flying container 10 after opening the valve 4C Can be estimated by integrating the acceleration over time.
When the flying container 10 approaches the work material 14 and the valve opening / closing control device 20 detects immediately before the start of cutting by the signal of the measuring device 19 based on the signal from the photoelectric sensor 16, the valve opening / closing control device 20 sends a signal for closing the valve 4C. And valve 4C is automatically closed.

The situation at this time is shown in Fig. 2 (b).
At this time, the pressures in the pipeline 2, the pipeline 3 and the chamber 1 become uniform, and the pressure becomes P ₀ = V ₄ × P ₄ / (V ₁ + V ₂ + V ₃ ), and the flying container 10 is accelerated or The decelerating pressure acts equally.
After a predetermined time has elapsed since the valve 4C was opened, when the valve opening / closing control device 20 detects the end of cutting by a signal from the measuring device 19 based on the signal from the photoelectric sensor 17, the valve opening / closing control device 20 is a signal for opening the valve 5C. And a deceleration force is applied to the flying container 10 by the pressure of the compressed gas supplied from the pressure container 5A.

The situation at this time is shown in Fig. 2 (c).
The pressure P _d0 in the pipe 3 immediately after opening the valve 5C is P _d0 = (P ₅ × V ₅ + P ₀ × V ₃ ) / (V ₅ + V ₃ ).
The pressure P _d for decelerating the flying container 10 increases according to the moving distance of the flying container 10, and P _d = (V ₃ + V ₅ ) × P _d0 / (V ₂ + V ₃ + V ₅ -A × x).

On the other hand, as the flying container 10 moves in the pipe 3, the pressure P ′ _{a in} the chamber 1 and the pipe 2 also acts on the flying container 10.
The pressure P ′ _a decreases according to the moving distance of the flying container 10 and is P ′ _a = P ₀ × (V ₁ + V ₂ ) / (V ₁ + A × x).

From the above, when the flying container 10 moves in the pipeline 3, the flying container 10 moves while receiving a deceleration acceleration of a ₂ = (− P _d + P ′ _a ) / m (<0). become.
Thus, the moving distance and speed from the loading position of the flying container 10 with respect to time can be obtained by sequentially integrating the acceleration over time.
The flying container 10 that receives the deceleration force stops at a speed of 0 in the flying container collection container 8 after a predetermined time has elapsed after opening the valve 4C.

  Since the cross-sectional area of the flying container collection container 8 is larger than the cross-sectional area of the pipeline 3, the compressed gas for deceleration continued to act even when the flying container 10 became zero in the flying container collection container 8. Even so, since the pressure is released from the gap between the inner walls of the flying container 10 and the flying container collection container 8, the pressure is not sufficiently applied, and the flying container 10 is not pushed back toward the chamber 1 through the conduit 3.

  The shock absorbing material 9 installed in the flying container collection container 8 is used for finally causing the flying container 10 to collide with and stop when the speed of the flying container 10 does not become zero in the pipeline 3. Since the compressed gas supply device 4 and the compressed gas supply device 5 have means for adjusting and setting the pressure, if the pressure is adjusted and set in advance before the experiment, the speed of the flying container within the flying container collection container 8 is reduced to 0. It is possible to make it.

  When the experiment is completed, the valve 5C is closed, the electromagnetic valve 1C for opening the atmosphere is opened, the inside of the chamber 1, the pipe line 2, and the pipe line 3 is opened to the atmosphere, and then the flying container 10 is taken out from the flying container collection container 8. , Take out the tools and chips in the flying container 10.

  The work material 14 can be removed by moving away from the pipe line using the height adjustment device 12, and the surface properties of the finished surface of the cut surface, observation of the material structure of the cut surface, measurement of residual stress distribution, etc. Can be analyzed.

Next, the structure of the flying container 10 and the mechanism in which the flying container 10 stores chips will be described in detail with reference to FIGS.
FIG. 3 is a cross-sectional view of the pipeline 2 and the pipeline 3, and a plurality of grooves 21 are provided along the axial direction on the inner wall of each pipeline.
In FIG. 3, three grooves are provided, but the number of grooves may be more than that.

FIG. 4 is a bird's-eye view schematically showing the positional relationship between the flying container 10 and the work material 14.
The work material 14 is basically a rectangular parallelepiped, and the work material may be any material such as metal, non-ferrous metal, glass, plastic, and wood.
As is generally done, a step may be provided in advance on the cutting surface of the work material 14 in order to obtain the true cut thickness.
In order to prevent the flying container 10 from flying while rotating in the pipe line 2 and the pipe line 3, the flying container 10 has a protrusion 22 that matches the groove 21 provided in the pipe line 2 and the pipe line 3. It is provided on the outer periphery.
Since the protrusion 22 moves in the pipe line while engaging with the groove 21, the cutting tool 11 can cut the work material 14 without rotating.

5, 6 and 7 are an exploded view, a front view seen from the flying direction, and a side sectional view seen from the flying direction, respectively, of the flying container 10 incorporating the tool.
The flying container 10 is composed of two parts, a streamlined cap part 10A for reducing air resistance and a tool installation part 10B for holding and fixing a tool.
A streamlined depression 10D is provided at the rear end of the tool installation section 10B for the purpose of increasing the thrust by concentrating the pressure of the compressed gas on the center of the axis of the flight vessel and stabilizing the flight attitude. is there.
In the cap portion 10A, a space 23 for storing chips is provided in front of the cutting edge 11A of the cutting tool.
The flying container 10 (cap part 10A and tool installation part 10B) is molded with a hard plastic or resin that has low density and rigidity and strength for weight reduction, or a composite material composed of resin, reinforced fiber, and reinforcing particles. good.

The cutting tool 11 is configured by connecting a cutting edge 11A of a cutting tool and a support 11B by brazing or the like.
The cutting blade of the cutting tool is built in the flying container 10 by inserting the column 11B portion into the tool installation portion 10B.
The cutting edge material of the cutting tool may be anything such as high speed steel, cemented carbide, cBN, diamond, or a coating film.
If the cutting tool has a single cutting edge shape as shown in Fig. 5 and 6, for example, the two-dimensional cutting process can be tested.

Further, if the cutting edge shape is a three-dimensional shape having a main cutting edge and a sub-cutting edge, the three-dimensional cutting process can be tested, so any shape can be used as long as it fits within the flying container 10.
The cutting edge 11A of the cutting tool does not protrude from the flying container 10, and the cap portion 10A interferes with the inside of the flying container 10 by the height of the cut thickness 24 of the work material 14 shown in FIG. Therefore, a depression 10C for preventing interference is contained in the lower part of the flying container 10.
The depth of the recess 10C for preventing interference is deep in the cap portion 10A and shallow in the tool installation portion 10B.
Further, a hole 10E for introducing the chip 25 into the chip storage space 23 is provided in the lower portion of the cap portion 10A.

FIG. 8 is a cross-sectional view schematically showing how the chips 25 generated by cutting are introduced into the chip storage space 23 in the cap portion 10A.
The chip 25 enters the cap part 10A from the chip introduction port 10E of the cap part 10A.
Here, the capacity of the chip storage space 23 needs to be a space in which chips can be sufficiently stored, and this needs to be determined from the cutting distance (length of the work material 14).

FIG. 9 is a cross-sectional view schematically showing a state in which the chips 25 are stored in the flying container 10 after the end of cutting.
Thus, after the end of cutting, the cutting edge 11A and the chip 25 of the cutting tool move together with the flying container 10.
If the flying container 10 receives a deceleration force due to the compressed gas from the compressed gas supply device 5 after the cutting is finished, and stops at the position immediately before the collision with the shock absorbing material 9 or the like in the flying container recovery container 8, The chip 25 and the tool edge portion 11A can be recovered in the state of deformation or damage in the cutting process without being deformed or damaged other than in the cutting process.

Figure 10 shows a cutting distance of 60 mm, the mass of the flying vessel 4 is about 35 g, the length of the pipe 2 is 3 m, the length of the pipe 3 is 3 m, the pressure of the pressure vessel 4A is 0.9 MPa, and the pressure of the pressure vessel 5A is Assuming 1.0 MPa, using the above simple analysis method, the opening / closing status of the valve 4C and valve 5C relative to the elapsed time after opening the valve 4C and firing the flying container 10, This is the result of calculating the relationship between the applied pressure (acceleration is positive and deceleration is negative) and the speed of the flying object.
As a result, in the case of the above conditions, the cutting process is realized about 27 ms after the launch.
Cutting time is about 0.3ms.
If the valve 4C is closed immediately before the start of cutting and the valve 5C is opened immediately after the end of cutting, the flying container 10 becomes zero in speed after about 56 ms.

FIG. 11 is a diagram showing the influence of the pressure of the pressure vessel 5A on the moving distance of the flying vessel 10 when the pressure of the pressure vessel 4A is set to, for example, 0.9 MPa or 0.3 MPa, similarly calculated.
From FIG. 11, if the pressure in the pressure vessel 5A is about 1.1 times the pressure in the pressure vessel 4A, the flying vessel 10 stops within the flying distance 6m, that is, the flying vessel collection vessel 8 at the end of the pipe 3.
FIG. 12 shows, as an example, the relationship between the maximum speed of the flying container 10, that is, the cutting speed, and the pressure of the deceleration pressure vessel 5A with respect to the pressure of the acceleration pressure vessel 4A obtained by the above-described rough calculation.

  In this way, the relationship between the pressure and speed of the compressed gas for acceleration and the relationship between the pressure of the compressed gas for acceleration and the pressure for deceleration required to stop the flying vessel 10 at the flying vessel collection vessel 8 part are calculated in advance. Alternatively, high-speed cutting experiments can be performed efficiently if studied in preliminary experiments.

It is a block diagram of the high-speed cutting test apparatus concerning embodiment of this invention. It is a schematic diagram for demonstrating the calculation process of the motion at the time of the acceleration of the flying container concerning embodiment of this invention. It is a schematic diagram for demonstrating the calculation process of the motion at the time of the cutting of the flying container concerning embodiment of this invention. It is a schematic diagram for demonstrating the calculation process of the motion at the time of the deceleration of the flying container concerning embodiment of this invention. It is typical sectional drawing of the pipe line for acceleration and deceleration concerning embodiment of this invention. It is the bird's-eye view which showed typically the positional relationship of the flying container and work material concerning embodiment of this invention. It is a typical exploded view of a flying container concerning an embodiment of the present invention. It is a typical front view of the flying container concerning the embodiment of the present invention. It is typical sectional drawing which shows the positional relationship of the flying container, cutting tool, and work material concerning embodiment of this invention. It is the figure which showed typically a mode that the chip concerning embodiment of this invention was stored in a flying container. It is typical sectional drawing which shows the state which stored the chip concerning embodiment of this invention in the flying container. It is an example of the result of having calculated | required the time change of the opening / closing state of the valve for acceleration and the valve for deceleration concerning the Example of this invention, the pressure loaded on a flying container, and the speed of a flying container by rough calculation. It is an example of the result of having calculated | required the relationship which the pressure for deceleration concerning the Example of this invention has on the movement distance of a flying container by rough calculation. It is an example of the result of having calculated | required the relationship between the pressure for acceleration concerning the Example of this invention, the maximum cutting speed, and the relationship between the pressure for deceleration for stopping a flying container in a flying container collection container by rough calculation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing chamber 1A Gas introduction solenoid valve 1B Vacuum exhaust solenoid valve 1C Atmospheric release solenoid valve 2 Flying vessel acceleration pipeline 3 Flying vessel deceleration pipeline 4 Flying vessel acceleration compressed gas supply device 4A Pressure vessel 4B Safety Ball valve 4C Open / close valve 5 for electromagnetic or air control Compressed gas supply device 5A for pressure reduction and stop of flying container 5B Pressure ball valve 5C Safety valve 5C Open / close valve 6 for electromagnetic or air control Vacuum exhaust device 7 Flying container loading port 8 Flying container Recovery container 9 Impact absorbing material 10 Flying container 10A Cap part 10B Tool installation part 10C Indentation 10D for preventing interference of work material Streamlined indentation 10E for concentrating the propulsive force of the flying container on the axis center and allowing it to fly stably Mouth 11 Cutting tool 11A Cutting tool cutting edge 11B Post 12 Height adjusting device 13 Force measuring device 14 Work material 15 Temperature measuring device 16 Photoelectric sensor (detecting the cutting immediately before the start)
17 Photoelectric sensor (detects immediately after cutting)
18 Speed measuring device 19 Measuring device 20 Valve opening / closing control device 21 Anti-rotation groove 22 Anti-rotation protrusion 23 Chip storage space 24 Cut thickness 25 Chip

Claims (16)

A high-speed cutting test apparatus for performing a cutting test by a high-speed cutting process in which a flying object container provided with a cutting blade for a cutting test is made to fly to a work material and a part of the cutting material is cut.
A first conduit closely inscribed in the flying object container;
A first pressure vessel containing compressed gas supplied from one end of the first pipe to the first pipe;
A first on-off valve provided between one end of the first pipe line and the first pressure vessel;
A second conduit closely inscribed in the flying object container;
A second pressure vessel containing compressed gas supplied from one end of the second pipe to the second pipe ;
A second on-off valve provided between one end of the second pipe and the second pressure vessel;
The first conduit and the second conduit is arranged on the same straight line, the work material is disposed between the other ends of the second conduit of the first conduit A high-speed cutting test apparatus characterized in that the second on-off valve is operated after the first limit valve is operated.
  2. The high-speed cutting test apparatus according to claim 1, wherein means for adjusting the pressure of the compressed gas stored in the first pressure container or the first pressure container is provided, and the flying object container is provided on the outlet side of the second pipe line. The high-speed cutting test apparatus is characterized in that the pressure of the compressed gas is adjusted so as to stop.   2. The high-speed cutting test apparatus according to claim 1, wherein a chamber is provided in which the other end of the first pipe line and the other end of the second pipe line are connected to accommodate the work material and to be isolated from the atmosphere. A high-speed cutting test device.   4. The high speed cutting test apparatus according to claim 3, further comprising a vacuum exhaust device connected to the chamber for evacuating the chamber.   4. The high speed cutting test apparatus according to claim 3, further comprising an air release valve connected to the chamber and opening the chamber to the atmosphere.   4. The high-speed cutting test equipment according to claim 3, further comprising a gas introduction valve connected to the chamber for introducing a specific gas into the chamber.   The high-speed cutting test apparatus according to claim 1, wherein the flying object container flying near the work material is detected between the other end of the first conduit and the other end of the second conduit. A high-speed cutting test apparatus characterized in that a detector is installed and the first on-off valve is closed by the output of the detector.   The high-speed cutting test apparatus according to claim 1, wherein the flying object container flying near the work material is detected between the other end of the first conduit and the other end of the second conduit. A high-speed cutting test apparatus characterized in that a detector is installed and the second on-off valve is opened by the output of the detector.   The high-speed cutting test apparatus according to claim 1, wherein a detector for detecting the flying object container flying in front of or behind the work material is installed, and the first on-off valve is closed by an output of the detector. High-speed cutting test equipment characterized by   The high-speed cutting test apparatus according to claim 1, wherein a detector for detecting the flying object container flying in front of or behind the work material is installed, and the second on-off valve is opened by an output of the detector. High-speed cutting test equipment characterized by   2. The high-speed cutting test apparatus according to claim 1, wherein a first detector that detects the flying object container flying in front of the work material is installed, and the first on-off valve is controlled by an output of the first detector. A high-speed cutting characterized in that a second detector for detecting the flying object container flying after the work material is installed and the second on-off valve is opened by the output of the second detector. Test equipment.   The high-speed cutting test apparatus according to claim 1, wherein the work material is placed on a stage disposed between the other end of the first pipe line and the other end of the second pipe line and is cut. The high-speed cutting test apparatus characterized in that the thickness of the work material is adjusted by controlling the height of the stage.   2. The high-speed cutting test apparatus according to claim 1, wherein a cap portion having a chip storage space is provided at a front portion in the flight direction of the flying object container.   The high-speed cutting test apparatus according to claim 12, wherein an introduction port for introducing the work material is provided between the cutting tool cutting edge and the cap portion.   13. The high-speed cutting test apparatus according to claim 12, wherein a recess for preventing interference of the work material cut out in the cap portion is provided.   The high-speed cutting test apparatus according to claim 1, wherein a flying container collection container is provided at one end of the second conduit, and the sectional area of the flying container collection container is made larger than the sectional area of the second conduit. A high-speed cutting test device.

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